Methanol synthesis water-cooling and air-cooling reaction equipment

The utility model discloses methanol synthesis water-cooling serial-gas-cooling reaction equipment which comprises a main body assembly, a first heat exchange assembly and a second heat exchange assembly, and the first heat exchange assembly comprises a water tank, a high-pressure pump, a first water inlet pipe, a pressure release valve and a flash tank; a high-pressure pump is mounted at the top of the water tank, one side of the water tank is communicated with a first water inlet pipe, a pressure release valve is mounted in the first water inlet pipe, and one end of the first water inlet pipe is communicated with a flash tank; the second heat exchange assembly comprises a fourth air inlet pipe, a heat exchange box and fins. According to the utility model, redundant heat of reaction gas in the third gas inlet pipe is absorbed through the water tank, so that the temperature of the reaction gas is prevented from greatly rising, the activity of a catalyst is prevented from being reduced, and the quantity of unr